US20090272499A1 - Stripping device for a press - Google Patents
Stripping device for a press Download PDFInfo
- Publication number
- US20090272499A1 US20090272499A1 US12/149,615 US14961508A US2009272499A1 US 20090272499 A1 US20090272499 A1 US 20090272499A1 US 14961508 A US14961508 A US 14961508A US 2009272499 A1 US2009272499 A1 US 2009272499A1
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- US
- United States
- Prior art keywords
- die
- cogwheel
- finger
- stripping device
- configuration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1818—Means for removing cut-out material or waste by pushing out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D2007/1881—Means for removing cut-out material or waste using countertools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1168—Gripping and pulling work apart during delaminating
- Y10T156/1179—Gripping and pulling work apart during delaminating with poking during delaminating [e.g., jabbing, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/19—Delaminating means
- Y10T156/1978—Delaminating bending means
- Y10T156/1983—Poking delaminating means
Abstract
A stripping device for stripping a waste piece from a sheet in a press has a resilient connecting portion connecting supporting finger connected to a frame of the press and a cogwheel disposed proximal an aperture of the frame. The cogwheel is aligned in register with a die in a first configuration of the device and slides along the cogwheel in contact with the waste piece to deflect, and thereby strip, the waste piece. The die also biases the cogwheel towards the finger as it is rotated until the device is in a second configuration in which the cogwheel is aligned for biasing back into the first configuration when the die is removed from contact with the cogwheel.
Description
- The present invention concerns mechanical devices, more particularly to mechanical devices for stripping waste from a pre-cut sheet of material.
- Presses for cutting sheet material such as paper, paperboard, cardboard and the like, are well known. When the sheet material is pre-cut and includes pre-cut portions, which need to be stripped out as waste pieces, the presses include stripping devices or stations. One such stripping station is disclosed in U.S. Pat. No. 3,786,731, issued to Bobst et al. on Jan. 22, 1974 for “Press for Cutting Sheet Material”. Bobst discloses stripping stations, which include a pair of frames and a board, which has a series of pre-cut die openings, which are shaped to the desired design. Stripping tools are mounted to the frames and sandwich the waste material therebetween once the sheet material is moved horizontally between the two frames. The stripping tools work together to remove the waste material. One problem, however, the stripping stations may operate too slowly for use with a high throughput stripping. U.S. Pat. No. 5,181,640, issued to Vossen et al. on Jan. 26, 1993 teaches a stripping station or device that works on similar principles, with a die punching the waste piece from the pre-cut material and passing through rollers which assist in rolling the waste piece away from the sheet.
- Unfortunately, for the devices taught by both Bobst et al. and Vossen et al., paper jams may occur frequently once the waste piece has been removed or while the waste piece is being removed. For example, for the device shown by Vossen et al., the waste piece may become stuck between the rollers. When a paper jam occurs, the press and stripping device must be shut down, often for a significant amount of time, while the jam is removed. Such shutdowns are frustrating for users and manufacturers and cause loss of both time and money while the paper jam is removed.
- Accordingly, there is a need for an improved stripping device.
- It is therefore a general object of the present invention to provide an improved stripping device.
- An advantage of the present invention is that the stripping device can be easily retrofitted into an existing pressing machine to strip waste portions from a pre-cut sheet, without the need for complex machinery.
- A further advantage of the present invention is the stripping device is constructed from inexpensive materials.
- Yet another advantage of the present invention is that, for the stripping device provided thereby, the occurrence of paper jams is significantly reduced or eliminated.
- Still another advantage of the present invention is that the stripping device enables significantly increased stripping speeds and, therefore, more rapid pressing of the sheets.
- In accordance with an embodiment of the present invention, there is provided a stripping device for stripping a waste piece from a sheet of material by a die of a press when the press is extended in a first direction through an aperture of a frame of the press with which the waste piece is aligned, a first die end of the die tearing the waste piece from the sheet as the die extends through the sheet in the first direction, the device comprising:
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- a resilient connecting portion having generally opposite first and second connecting sides;
- a supporting finger extending from the first connecting side and having a connecting end connectable to the frame; and
- a cogwheel rotatably mounted on an extending end of at least one arm extending from the second connecting side and including at least three adjoined peripheral faces connected to one another at corresponding edges, the cogwheel being aligned, in a first configuration for the device, with one face of the peripheral faces facing the waste piece and the die and being in register with the die and for rotating of the cogwheel by sliding of the die along a portion of the one face with the waste piece disposed therebetween as the die is extended in the first direction, thereby deflecting the waste piece away from the sheet, and biasing the cogwheel inwardly towards the supporting finger until the one face, in a second configuration for the device, extends substantially alongside the die in an orientation generally parallel to the first direction and in at least partial side contact therewith and a next adjacent face of the peripheral faces is positioned for subsequent sliding of the die therealong with the cogwheel being resiliently biased away from the supporting finger when the die is removed from side contact therewith, the device being returned thereby to the first configuration.
- Further aspects and advantages of the present invention will become better understood with reference to the description in association with the following Figures, in which:
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FIG. 1 is a simplified perspective view of a die cutting press with a pair of stripping frames showing an embodiment of a stripping device in accordance with the present invention; -
FIG. 2 is a simplified exploded view of the stripping device shown inFIG. 1 ; -
FIG. 3 is a simplified side view of the stripping device in a first, default configuration; -
FIG. 4 is a simplified side view of the stripping device being initially engaged by a die of the press and having a cogwheel thereof rotated thereby out of the first configuration while contacting a waste piece from a sheet of material; -
FIG. 5 is a simplified side view of the stripping device as the die continues to rotate the cogwheel and biases the cogwheel towards a supporting finger of the device, the die moving the device towards a second configuration as the waste piece is removed from the sheet; -
FIG. 6 is a simplified side view of the stripping device in a second configuration with the waste piece removed from the sheet and moving away therefrom; -
FIG. 7 is a perspective view of a stripping device in accordance with an alternative embodiment of the present invention; and -
FIG. 8 is a sectional view of the stripping device shown inFIG. 7 . - Referring now to
FIG. 1 , a press for pressing sheets of material, such as paper, is shown generally as 10. The press 10 is used to remove waste pieces ofmaterial 12 from pre-cut sheets ofmaterial 14, which is typically paper, paperboard, cardboard and the like. The pre-cut sheet ofmaterial 14 is typically a template for many applications. Examples include, but are not limited to, backing sheets for a blister package, blanks for constructing paperboard cartons and the like. The press 10 is a die-cutting press of a conventional design known to those skilled in the art and includes a pair of connected planarbody press frames - Referring now to
FIGS. 1 and 2 , theframe 16 includes a number of pre-shaped male dies (punches) 22. Theframe 18 includes a corresponding number of pre-shapedfemale body openings 24, which are complementary to themale dies 22. Thedies 22 and theopenings 24 are pre-shaped according to a required template design and the pre-cutting patterns on thesheets 14. More specifically, thedies 22 and theaperture 24 are complementary to, i.e. aligned with, the cut-outs 12 defining thewaste pieces 12 in thesheet 14 for tearing, punching, or otherwise removing the cut-outs 12, aswaste pieces 12, when thedies 22 are extended towardsframe 18 and throughapertures 24. While rectangular or squareshaped sheets 14 of material are illustrated throughout, it is to be understood that any type ofsheet 14 shape may be used without deviating from the scope of the present invention. Moreover, the number ofbody apertures 24 and dies 22 may vary and depend on the design requirements of the finished template for thesheet 14 with thewaste pieces 12 removed. - Reference is now made to
FIGS. 1 through 6 . The stripping device of the present invention is shown generally as 26 and is connected to theframe 18 in proximity to anaperture 24, typically with at least onestripping device 26 for eachaperture 24. Thestripping device 26 includes a stripping cogwheel, shown generally as 28, a supportingfinger 34 connected on a respective connectingend 58 thereof to theframe 18 proximal thebody aperture 24, and a connectingportion 30 connecting at least one, and preferably first and second,cogwheel arms 36, on which thecogwheel 28 is rotatably mounted, to the supportingfinger 34. The connecting portion 32 is resilient and arcuate, i.e. curved, with the supportingfinger 34 located extending from a first connectingside 40 thereof and thearms 36 andcogwheel 28 located extending from a second connectingside 42 thereof, generally opposite the first connectingside 40 of the connectingportion 30. More specifically, the connecting portion forms a concave curve or arc extending between the first and second connectingsides arms 36 and supportingfinger 34. Thecogwheel 28 on thearms 36 is disposed towards, and preferably at least partially in, the body opening 24 for intersecting and subsequent sliding contact with both thewaste piece 12 and a portion of thedie 22, for example thefirst die end 23, on a portion of thecogwheel 28 to strip thewaste piece 12 away from theaperture 24 as thedie 22 is passed through theaperture 24 in first direction shown by arrow D1. Further, the supportingfinger 34,arms 36, and connectingportion 30 are preferably configured, for example sized and shaped, such that thecogwheel 28 extends at least partially beyond the connectingend 58 and at least partially into thebody aperture 24. - Referring now to
FIGS. 2 through 6 , thecogwheel 28 is described in greater detail. Thecogwheel 28 is rotatably mounted on at least one, and preferably both,arms 36 on anaxle 80 defining arotational axis 82 for thecogwheel 28, theaxle 80 extending therethrough and being mounted inaxle mounting apertures 78 situated in the extendingends 48. Thecogwheel 28 has at least three (3), and preferably four (4), adjoinedperipheral faces 60, preferably of identical dimension and shape, which form the shape of thecogwheel 28. Thus, for the embodiment shown, thecogwheel 28 is preferably square in shape. Thefaces 60 are connected to one another atcorresponding edges 62 which form corners between adjacent faces, for example 60 a 60 b. More specifically, eachface 60 has respective longitudinally opposed first and second corresponding edges, for example 62 a, 62 b forface 60 a with a first, leading,edge 62 a being alignable proximal to and in partially overlapping register with thedie 22, for a first configuration shown generally as 52 inFIG. 3 of the device, for intersecting thedie 22 extending in direction D1 and subsequent sliding contact of thedie 22 with at least a portion of theface 60. The sliding contact, as explained below, by thedie 22 with thewaste piece 12 and theface 60 causes the cogwheel to rotate in first rotational direction, shown by arrow R1, as thedevice 26 is moved, as shown inFIGS. 4 and 5 , into a second configuration shown generally as 54 inFIG. 6 . Thesecond edge 62 b of theface 60 is situated distal thedie 22 when thefirst edge 62 a offace 60 is aligned proximal thedie 22 and in register therewith. - Each
face 60 preferably has a recess, shown generally as 64, situated between the first andsecond edges 62 and which extends inwardly relative the respective first andsecond edges 62 of theface 60, and therefore towards theaxis 82. More specifically, therecess 64 is preferably arcuate, i.e. curved, and thus curves concavely inwardly relative theedges 62 towards theaxis 82. Eachrecess 64 is preferably spaced apart from the first andsecond edges 62, preferably equidistant thereto, first and second edges 62. More specifically, each face 60 preferably has a respective first planarflat portion 66 a, extending from thefirst edge 62 thereof to therecess 64, the respective firstflat portion 66 a being alignable proximal and in at least partially overlapping register with the die 22, for thefirst configuration 52, for initial contact with thedie 22. The die 22 then moves in sliding contact with the first planarflat portion 64 andwaste piece 12 into the concave curvature of therecess 64, which facilitates rotation of thecogwheel 22 in rotational direction R1 during stripping of thewaste piece 12. Optionally, each face 60 may also have a respective second flatplanar portion 66 b, generally planarly aligned with the firstflat portion 66 a extending from therecess 64 to thesecond edge 62 b. - Referring now to
FIGS. 2 , 3, 4 and 5, the connectingportion 30, andoptionally arms 36 and supportingfinger 34, is resilient and made of a resilient material, such as hardened steel or resilient plastic. For example, for the embodiment shown, the connectingportion 30 is a folded over, and thus curved, single piece of hardened steel. In the first,default configuration 52, in which thedie 22 is separated from thecogwheel 28 and one of the faces, sayface 60 a, faces towards thedie 22 and thewaste piece 12 andsheet 14, the inherent resilience of the connectingportion 30, as well as of thearms 36 andfinger 34 when also resilient, biases thecogwheel 28 away from the supportingfinger 34 such that thecogwheel 26 is aligned with the die in overlapping register therewith, and specifically with the firstflat portion 66 a or edge 62 a of theface 60 a. Thus, the connectingportion 30, andoptionally arms 36 andfinger 34, automatically alignscogwheel 28, when the die 22 separated therefrom as in thefirst configuration 52, for contact, initially on thefirst edge 62 a orflat portion 66 a, with thewaste piece 12 and thedie 22 and subsequent rotation in rotational direction R1, by sliding of thedie 22 along theflat portion 66 a and then recess 64, with thewaste piece 12 disposed therebetween, by extension of the die 22 in direction D1, shown inFIGS. 3 and 4 . Thus, thewaste piece 12 is deflected, and thereby stripped, by friction between thesheet 14, die 22, and face 60 away from thesheet 14 and through theaperture 24. It should be noted that theface 60 may become briefly separated from thedie 22 andwaste piece 12 during the rotation of thecogwheel 28 in rotational direction R1, notably as thecogwheel 28 rotates of flips between theflat portion 66 a and therecess 64, which only facilitates stripping in that thewaste piece 12 may then freely fall or be deflected away, as described above, from thesheet 14. - Reference is now made to
FIGS. 3 , 4, 5, and 6. As thedie 22 continues to move in direction D1, sliding alongrecess 64 towardssecond edge 62 b and secondflat portion 66 b, thedie 22 pushes or biases thecogwheel 28 inwardly towardfinger 34, especially as the die approaches the outwardcurving recess portion 68 ofrecess 64 leading up to the firstflat portion 66 a and edge 62 a. Concurrently, the ongoing movement ofdie 22 in first direction D1 and sliding alongface 60 a continues to rotate thecogwheel 28 in rotational direction R1 moving thesecond edge 62 b andflat portion 66 b offace 60 a towards thedie 22 and a nextadjacent face 60 b of thecogwheel 28 towards a position facing theaperture 24 until the device is insecond configuration 54. In thesecond configuration 54, theface 60 a extends substantially alongside the die 22 in an orientation generally parallel the first direction D1 and in at least partial side contact with the die 22, and preferably with both first andsecond edges flat portions cogwheel 28 towards thefinger 34. The nextadjacent face 60 b, for thesecond configuration 54, is positioned facing theaperture 24, preferably perpendicular thedie 22. Thus, in the second, compressed,configuration 54, the nextadjacent face 60 b is thus oriented for subsequent sliding of the die 22 therealong, once the die 22 is removed from side contact with theface 60 a, for example when thedie 22 is retracted in opposing second direction D2, which causes thecogwheel 28 to be biased resiliently away from thefinger 34, thus placing theadjacent face 60 b in overlapping register withdie 22 and returning thedevice 26 to thefirst configuration 52 for punching and stripping of thewaste piece 12 from anew sheet 14. Thus, the device moves, automatically and conveniently, fromfirst configuration 52 tosecond configuration 54, and back to first configuration, with thecogwheel 28 rotated in the first rotational direction R1 to position the nextadjacent face 60 for subsequent stripping of thenext waste piece 12 as thedie 22 is inserted and removed through theaperture 24 to remove thewaste piece 12 from thesheet 14. This continuous and automatic realignment of thedevice 26 for subsequent stripping allows for increased speed of processing with the press 10. Further, deflection of thewaste piece 12 reduces risks of paper jams. - To ensure that the
cogwheel 28, and more specifically the nextadjacent face 60 is properly aligned with the die 22 when thedie 22 is removed from contact therewith during return of thedevice 26 from thesecond configuration 54 to thefirst configuration 52, thedevice 26 may optionally have a ratchet arrangement, shown generally as 90, connected to thecogwheel 28, which impedes rotation of thecogwheel 28 in a second rotation direction R2 generally opposed to the first rotation direction R1. The ratcheting arrangement 90 generally includes at least oneratchet wheel 94, well known in the art, havingratchet teeth ratchet finger 98 for eachratchet wheel 94. Ratchetteeth 96′, positioned alternately withteeth 96, are typically flattened and are generally used to prevent small rotational wobbling ofcogwheel 28 relative toarms 36 and ratchetfingers 98, when stopped thereby. For example, and as shown inFIG. 2 , the ratchet arrangement 90, may have first andsecond ratchet wheels 94, connected to thecogwheel 28 in alignment with awheel side 92 of thecogwheel 28 and mounted on theaxle 80 therewith, and first and second ratchetfingers 98. The first and second ratchetfingers 98 are configured, for example positioned and aligned connected to and extending form thearms 36, for contact with theratchet wheel 94, notably theteeth 96 thereof, whenever thecogwheel 98 is rotated. Theratchet fingers 98 andteeth 96 are further configured, as is typical of most ratcheting arrangements known in the art, such that a portion of theratchet finger 98 will be abuttingly immobilized against one of theteeth 96 or become abuttingly immobilized therein when theratchet wheel 94 and thereby thecogwheel 28 is rotated in direction R2. Thus, theteeth 96 abuttingly stop rotation of thecogwheel 28 in rotational direction R2, essentially limiting rotation of thecogwheel 28 to first rotational direction R1. Advantageously, impeding of the rotation of thecogwheel 28 in rotational direction R2 also reduces the risk that thewaste piece 12 will be pulled in that direction R2, thus reducing the risk of thewaste piece 12 jamming in theaperture 24 or another part of the press 10. - To ensure that the resilient action of the connecting
portion 30, andarms 36 andfinger 34 when resilient, do not result in thecogwheel 28 being biased too far away from thefinger 34, upon release from thesecond configuration 54, at least onearm 36 has a respectivearm hooking member 100 connected thereto and extending towards the said supportingfinger 34. For eacharm hooking member 100, there is a respectivefinger hooking member 102 extending from the supportingfinger 34 towards thearm 36. Eacharm hooking member 100 has anarm member flange 104 extending therefrom towards thefinger hooking member 102 and eachfinger hooking member 102 has a respectivefinger member flange 106 extending therefrom towards thearm hooking member 100. The hookingmembers flanges device 26 in preventing thearms 36 from moving away from thefinger 34 beyond thefirst configuration 52, are configured, for example sized, shaped, or positioned, such that thearm member flange 104 is configured slidably movable, i.e. in sliding contact with thefinger hooking member 102 between thefinger member flange 106 and the supportingfinger 34, with thearm member flange 104 abuttingly hooking against thefinger member flange 106 when thedevice 26 is in thefirst configuration 52, which stops further movement of thecogwheel 28 away from the supportingfinger 34. The hookingmembers flanges cogwheel 28 beyond saidfirst configuration 52 when thedie 22 is removed from side contact with thecogwheel 28. As shown, there are preferably first and secondarm hooking members 100 with respectivearm member flanges 104,finger hooking members 102, andfinger member flanges 106 therefor. - Alternatively, and as shown in
FIGS. 7 and 8 , an alternative embodiment of thedevice 26′ may have a cap, shown generally as 130, forming a device retaining member and which covers bothsides portion 30, and optionally over a portion of thearms 36 andsupport finger 34. Thecap 130 is sized and shaped such that the connectingportion 30, thesupport finger 34, andarms 36 abut withinner cap walls 132 of thecap 130 when the device is in thefirst configuration 52, with thecogwheel 28 being rotated and biased inwardly as previously described when thedevice 26 is moved into thesecond configuration 54. Thus, as withmembers cap 130 is deployed, thecap 130 abuttingly stops thearm 36 from biasing outwardly relative thesupport finger 34 beyond thefirst configuration 52. Thecap 130 is typically connected to the connecting end 38 using bolt or screw 112 which connects a connectingmember 134 of thecap 130 configured for extending along and over thesupport finger 34 to the connecting end 38. - The extending ends 48 may, optionally, have tapered
slots 84 which flare outwardly from the mountingapertures 78 and through which theaxle 80 may be inserted and then snappably placed or inserted into the mountingapertures 78. Thus, thecogwheel 28 andaxle 80 may be easily and removably mounted. - As shown in
FIG. 2 , anoptional spacer 110 may be included with device and which may be connected between the connectingend 58 and theframe 18 with screw or bolt 112 inserted throughscrew apertures 114 and securely engaged in acorresponding screw hole 114′ of theframe 18. Thespacer 110 spaces the connectingend 58 further away from theframe 18, and thus may be deployed to space thecogwheel 28 further away, or less further into, theaperture 24 than would be the case if the connectingend 58 alone was connected to frame 18 withscrew 112. - Connecting
end 58, as well asspacer 110, typically includes at least one, preferably two, rotational locking and positioning guides 111 adapted to engage corresponding guide slot holes 113 of theframe 18adjacent screw hole 114′. Whenspacer 110 is used, the latter typically includes guide recesses 115 to guidingly receive the positioning guides 111 of the connectingend 58 therein. The positioning guides 111 with corresponding slot holes 113 prevent any possible rotation of thedevice 26 about the screw axis that would move thecogwheel 28 away from the correspondingdie 22, and therefore prevent proper operation of thedevice 26. - While specific embodiments of the stripping device have been described, those skilled in the art will recognize many alterations that could be made within the spirit of the invention, which is defined solely according to the following claims.
Claims (23)
1. A stripping device for stripping a waste piece from a sheet of material by a die of a press when the press is extended in a first direction through an aperture of a frame of the press with which the waste piece is aligned, a first die end of the die tearing the waste piece from the sheet as the die extends through the sheet in the first direction the device comprising:
a resilient connecting portion having generally opposite first and second connecting sides;
a supporting finger extending from the first connecting side and having a connecting end connectable to the frame; and
a cogwheel rotatably mounted on an extending end of at least one arm extending from the second connecting side and including at least three adjoined peripheral faces connected to one another at corresponding edges, said cogwheel being aligned, in a first configuration for said device, with one face of said peripheral faces facing the waste piece and the die and being in register with the die and for rotating of the cogwheel by sliding of the die along a portion of said one face with the waste piece disposed therebetween as the die is extended in the first direction, thereby deflecting the waste piece away from the sheet and through the aperture, and biasing the cogwheel inwardly towards said supporting finger until said one face, in a second configuration for said device, extends substantially alongside the die in an orientation generally parallel to the first direction and in at least partial side contact therewith and a next adjacent face of said peripheral faces is positioned for subsequent sliding of the die therealong with said cogwheel being resiliently biased away from the supporting finger when said die is removed from side contact therewith, said device being returned thereby to said first configuration.
2. The stripping device of claim 1 , wherein said at least three adjoined peripheral faces comprises four adjoined peripheral faces.
3. The stripping device of claim 1 , wherein said peripheral faces are of identical shape and dimension.
4. The stripping device of claim 1 , wherein for each said face, said corresponding edges comprise longitudinally opposed first and second edges, said respective first edge being alignable, for said first configuration, proximal to and in register with the die and with the second edge distal the die for enabling contact of the die with the first edge when moved in the first direction.
5. The stripping device of claim 1 , wherein each peripheral face comprises a respective recess which extends inwardly relative said edges.
6. The stripping device of claim 5 , wherein and each said respective recess is spaced apart from said respective first edge.
7. The stripping device of claim 5 , wherein said respective recess is also spaced apart from said second edge.
8. The stripping device of claim 6 , wherein said respective recess is equidistant said respective first and second edges.
9. The stripping device of claim 5 , wherein said respective recess is curved concavely inwardly relative said respective first and second edges.
10. The stripping device of claim 5 , wherein the cogwheel is configured for initial contact of the die proximal said respective first edge of said one face when the die is moved in the first direction and for subsequent sliding of the die along a recess portion, proximal said first edge, of said respective recess, said cogwheel being rotated and biased towards said supporting finger as the die slides along said respective recess.
11. The stripping device of claim 5 , wherein each face has a respective first flat portion, said respective first flat portion extending from said first edge to said recess, said respective first flat portion being alignable in register with said die for said first configuration for initial contact with the die when said die is moved in the first direction to cause said cogwheel to rotate towards said second configuration.
12. The stripping device of claim 11 , further comprising, for each face a respective second flat portion extending between said recess and said respective second edge.
13. The stripping device of claim 5 , wherein, in said second configuration, said first and second edges of said one face abut against the die.
14. The stripping device of claim 1 , wherein said at least one arm is a first arm and a second arm and said cogwheel is rotatably mounted between arms on an axle extending therebetween, said axle defining a rotational axis for around which said cogwheel rotates.
15. The stripping device of claim 14 , wherein extension of said die in the first direction causes said cogwheel to rotate in a first rotational direction about said rotational axis, said device further comprising a ratchet arrangement connected to said cogwheel disposed between said arms, said ratchet arrangement impeding rotation of said cogwheel in a second rotational direction opposite said first rotational direction.
16. The stripping device of claim 15 , wherein said ratchet arrangement comprises at least one toothed ratchet wheel connected to the cogwheel and mounted therewith upon the axle and, for said ratchet wheel, a respective ratchet finger extending from one of said arms and aligned for contact with teeth of said ratchet wheel when said cogwheel and said ratchet wheel, are rotated, said teeth being configured for abuttingly stopping rotation of said ratchet wheel, and thereby said cogwheel, in said second rotational direction.
17. The stripping device of claim 1 , wherein said connecting portion is curved and forms a concave arc extending between said first and said second connecting sides and said at least one arm and said supporting finger.
18. The stripping device of claim 1 , wherein said at least one arm is also resilient, said arm being biased towards said supporting finger as said device moves from said first configuration to said second configuration and away from said supporting finger as said device moves form said second configuration to said first configuration.
19. The stripping device of claim 1 , wherein said arm and said supporting finger are sized and shaped such that said cogwheel extends at least partially into said aperture.
20. The stripping device of claim 1 , further comprising, for each said arm, a respective arm hooking member connected thereto and extending towards said supporting finger and a respective finger hooking member extending from said supporting finger towards said arm, said respective arm hooking member having a respective arm member flange extending therefrom towards said respective finger hooking member, said respective finger hooking member having a finger member flange extending therefrom towards said arm hooking member, said respective arm member flange being slidably movable along said respective finger hooking member between said finger member flange and said support finger and abutting said respective finger member flange when said device is in said first configuration, thereby preventing resilient biasing of said cogwheel beyond said first configuration.
21. The stripping device of claim 1 , further comprising a spacer connectable to said connecting end and the frame, with said spacer being disposed therebetween, for spacing said cogwheel away from said aperture.
22. The stripping device of claim 1 , wherein said connecting end includes at least one rotational locking and positioning guide extending therefrom for engaging a corresponding slot hole on the frame.
23. The stripping device of Claim 1, further comprising a cap connected to the connecting end and covering the connecting portion and partially covering said arm and said supporting finger, said cap being configured for abutment of the finger and arm with an interior wall thereof when said device is in said first configuration, thereby preventing said arm from being biased outwardly away from said finger beyond said first configuration.
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US12/149,615 US20090272499A1 (en) | 2008-05-05 | 2008-05-05 | Stripping device for a press |
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US12/149,615 US20090272499A1 (en) | 2008-05-05 | 2008-05-05 | Stripping device for a press |
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US20090272499A1 true US20090272499A1 (en) | 2009-11-05 |
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US12/149,615 Abandoned US20090272499A1 (en) | 2008-05-05 | 2008-05-05 | Stripping device for a press |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140174671A1 (en) * | 2012-12-24 | 2014-06-26 | Hon Hai Precision Industry Co., Ltd. | Apparatus for stripping release paper from workpiece |
EP2764964A1 (en) * | 2013-02-06 | 2014-08-13 | Cito-System GmbH | Breakaway tool for breaking out stamping by-products in the production of blanks from a sheet, as well as securing element |
WO2016145534A1 (en) * | 2015-03-17 | 2016-09-22 | 9673156 Canada Inc. | Stripping device and method for removing a scrap portion from a cut-out section |
GB2549973A (en) * | 2016-05-05 | 2017-11-08 | Speedpin Ltd | A stripper clip |
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US2844372A (en) * | 1955-09-28 | 1958-07-22 | Liebenow Julius Gus | Stripper mechanism |
US3128929A (en) * | 1964-04-14 | Method and apparatus for the removal of waste in | ||
US3786731A (en) * | 1971-07-13 | 1974-01-22 | Bobst Fils Sa J | Press for cutting sheet material |
US4033240A (en) * | 1975-05-14 | 1977-07-05 | Deslauriers Clovis F | Rotary stripping wheel |
US5111725A (en) * | 1991-05-31 | 1992-05-12 | Container Graphics Corporation | Scrap ejector for rotary die cutting apparatus |
US5181640A (en) * | 1990-03-12 | 1993-01-26 | Meurer Nonfood Product Gmbh | Apparatus for removing break-out portions from a sheet of material or the like |
US20050227847A1 (en) * | 2004-04-08 | 2005-10-13 | Paolo Quercia | Stripping device for a press |
US6997363B1 (en) * | 1998-04-02 | 2006-02-14 | Franz Vossen | Device for removing break-off components from a sheet of material or equivalent |
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- 2008-05-05 US US12/149,615 patent/US20090272499A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
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US3128929A (en) * | 1964-04-14 | Method and apparatus for the removal of waste in | ||
US2844372A (en) * | 1955-09-28 | 1958-07-22 | Liebenow Julius Gus | Stripper mechanism |
US3786731A (en) * | 1971-07-13 | 1974-01-22 | Bobst Fils Sa J | Press for cutting sheet material |
US4033240A (en) * | 1975-05-14 | 1977-07-05 | Deslauriers Clovis F | Rotary stripping wheel |
US5181640A (en) * | 1990-03-12 | 1993-01-26 | Meurer Nonfood Product Gmbh | Apparatus for removing break-out portions from a sheet of material or the like |
US5111725A (en) * | 1991-05-31 | 1992-05-12 | Container Graphics Corporation | Scrap ejector for rotary die cutting apparatus |
US6997363B1 (en) * | 1998-04-02 | 2006-02-14 | Franz Vossen | Device for removing break-off components from a sheet of material or equivalent |
US20050227847A1 (en) * | 2004-04-08 | 2005-10-13 | Paolo Quercia | Stripping device for a press |
US7360475B2 (en) * | 2004-04-08 | 2008-04-22 | Paolo Quercia | Stripping device for a press |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140174671A1 (en) * | 2012-12-24 | 2014-06-26 | Hon Hai Precision Industry Co., Ltd. | Apparatus for stripping release paper from workpiece |
US9248604B2 (en) * | 2012-12-24 | 2016-02-02 | Fu Ding Electronical Technology (Jiashan) Co., Ltd. | Apparatus for stripping release paper from workpiece |
EP2764964A1 (en) * | 2013-02-06 | 2014-08-13 | Cito-System GmbH | Breakaway tool for breaking out stamping by-products in the production of blanks from a sheet, as well as securing element |
WO2016145534A1 (en) * | 2015-03-17 | 2016-09-22 | 9673156 Canada Inc. | Stripping device and method for removing a scrap portion from a cut-out section |
GB2549973A (en) * | 2016-05-05 | 2017-11-08 | Speedpin Ltd | A stripper clip |
WO2017190925A1 (en) * | 2016-05-05 | 2017-11-09 | Speedpin Limited | A stripper clip |
CN109070377A (en) * | 2016-05-05 | 2018-12-21 | 斯比品有限公司 | A kind of peel jig |
US20190111580A1 (en) * | 2016-05-05 | 2019-04-18 | Speedpin Limited | Stripper clip |
US10974410B2 (en) * | 2016-05-05 | 2021-04-13 | Speedpin Limited | Stripper clip |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |